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CVE Record

CVE-2025-53342: WordPress Modernize Theme <= 3.4.0 - Cross Site Scripting (XSS) Vulnerability

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in GoodLayers Modernize modernize allows Stored XSS.This issue affects Modernize: from n/a through <= 3.4.0.

MediumCVSS 6.5Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2025-53342 is a stored cross-site scripting issue in the GoodLayers Modernize WordPress theme through version 3.4.0. A lower-privileged authenticated user may be able to save content that later runs script in another user’s browser. The business risk is account compromise, content tampering, or visitor trust damage on affected WordPress sites.

Executive priority

Treat this as a moderate-priority WordPress exposure. It is not reported as actively exploited in the provided sources, but stored XSS can affect privileged administrators and public trust. Prioritize internet-facing sites and sites with many content contributors.

Technical view

The CVE describes CWE-79 improper input neutralization during web page generation in the Modernize theme. The CVSS 3.1 score is 6.5 with network access, low attack complexity, low privileges required, user interaction required, and changed scope. Public sources identify affected versions as Modernize through 3.4.0; no exploit procedure or confirmed fix is included in the bundle.

Likely exposure

Exposure is limited to WordPress installations using the GoodLayers Modernize theme at version 3.4.0 or earlier. Risk is higher where untrusted or numerous authenticated users can submit stored content or theme-managed fields.

Exploitation context

The source bundle does not show CISA KEV listing or other evidence of active exploitation. Stored XSS usually requires an attacker to place malicious content that a victim later views, so administrative users are a higher-value target.

Researcher notes

Evidence is limited to the CVE data and Patchstack vulnerability reference. The bundle does not include vulnerable parameters, proof of concept, patch commit, or explicit remediation version. Avoid assuming exploit availability or a fixed release without checking vendor guidance.

Mitigation direction

  • Inventory WordPress sites for the Modernize theme and record installed versions.
  • Check GoodLayers and Patchstack guidance for a fixed version or official mitigation.
  • Update the theme if a vendor-supported fixed release is available.
  • Restrict content-editing privileges until remediation is complete.
  • Consider replacing or disabling the theme if no supported fix exists.

Validation and detection

  • Confirm whether each WordPress site uses Modernize version 3.4.0 or earlier.
  • Review user roles that can create or modify stored theme content.
  • Check vendor advisories for corrected versions and remediation notes.
  • After remediation, verify the installed theme version and regression-test key pages.
  • Review logs for suspicious content changes by low-privileged accounts.
Prepared
Confidence
medium
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-79: User-session and phishing behavior lookup

Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2025-53342 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Medium
CVSS
6.5 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
6.5CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L2.33.7Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

6.5Medium
CVSS 3.1 vector shape for CVE-2025-53342Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
GoodLayersModernizemodernize, 0unaffected
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-79 · source CWE mapping

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.